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Spell details for Bio  

Jobs/Level:Black Mage, lvl 10
Red Mage, lvl 10
Dark Knight, lvl 15
MP cost:15
Element:Darkness
Scroll:Scroll of Bio
Duration:N/A
Reuse:5 Seconds
Cast time:1.5 seconds
Target Type:Single
Description:Deals dark damage that weakens an enemy's attacks and gradually reduces its HP.

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attack down %?
# Apr 30 2008 at 7:55 PM Rating: Decent
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168 posts
how much does bio reduce the targets attack by?
attack down %?
# May 01 2008 at 8:12 AM Rating: Good
Bio I reduces attack by 5.27% (27/512). Bio II is 10.35% (53/512).
Dia over Bio in party play.
# Aug 07 2007 at 6:14 AM Rating: Decent
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73 posts
I was told in a Party to use Dia over Bio. I had been using Bio because I thought it was the stronger spell. Could someone explain to me the reasons why you should use Dia over Bio in a party setting. I am new at this and I really want to understand these spells and how to use them the most effectively in party and solo play.
Thanks
Dia over Bio in party play.
# Sep 05 2007 at 4:14 PM Rating: Decent
Bio is a dark-element DoT (Damage over Time). Dia is a light-element DoT/debuff (the damage is purely to handicap its use a smidge by giving you a lot more aggro than you would with just a debuff, but still a lot less than your party is dishing out; or you need to find a new party. I don't see more than one damage, typically, but for the purposes of breaking Bind, or aggro, or suchlike, one had better consider Dia a DoT, with recurring damage). The debuff to physical damage is why Dia is better for melee parties; the damage per tick from Bio is not equal to the extra damage that fighters will do against a target whose physical damage resistance has been weakened by Dia.
If, however, you find yourself in a group with 2 black mages 2 white mages a bard and a paladin, say, (hey, it -could- happen), then pretty much only the paladin is doing melee damage, and you might as well go ahead and Bio.
pointless arguement
# Mar 10 2007 at 11:34 AM Rating: Decent
this arguement is pointless, period,
first off SE has stated on several occasions that our attacks do the same to a mob that a mobs attack does on us,
regardless of if the effects stack Dia and Bio do stack on the mobs if they stack on us, so therefore if the effects dont stack on the mob I.E. Bio overwrites Dia,
they do NOT stack on us either...

besides that in PTs numerous times we have gotten both Dia and Bio to stick as long as they came from different players...and yes they did more damage combined to the mob when they came from different players but not when they came from the same player,


oh and the reason the arguement is pointless is because most players by the time they get into this sort of arguement have already decided what they believe
<i dont understand>
# Oct 31 2006 at 3:18 PM Rating: Decent
ok...dia and bio do the same thing but one is divin and one is dark so why is bio not enfibling or dia not divin?
>.>?
# Oct 31 2006 at 3:15 PM Rating: Decent
ok...dia and bio do the same thing but one is divin and one is dark so why is bio not enfibling or dia not divin? <i dont understand>
>.>?
# Oct 31 2006 at 3:13 PM Rating: Decent
ok...dia is not divin magic but bio is dark magic, bio and dia do the same thing just one is light and one is dark, dia is enfibling magic so why is bio not the same? >.>?
I see the power of stupid compels you.
# Sep 18 2006 at 4:52 AM Rating: Decent
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1,543 posts
Let's clear this up.

Dia and Bio do not stack. Ever. Dia is overwritten by Bio, which is overwritten by Dia II, which is overwritten by Bio II, which is overwritten by Dia III (merit spell for RDM's), and Bio III (another RDM merit spell) will overwrite and and all of these. Likewise, the higher tier of Dia or Bio will overwrite a lower-tier version- so Dia loses to Dia II loses to Dia III.

This works the exact same way in Ballista vs. PC's as it does vs. monsters.

Got it? Clear as crystal? Good. Resume your squabbling.
Mobs aren't Player-Characters
# Aug 21 2006 at 6:49 PM Rating: Decent
To those people who hang their hat on "I've had Dia and Bio cast on me simultaneously by mobs" so they both must stack... I've experimented HEAVILY with these spells on Bahamut, and constantly get in arguements, especially in Valkurm and Qufim. Dia I will not override Bio I UNLESS it's caster's DIVINE skill is higher than the Bio caster's DARK skill - something I have YET to see... Mobs follow different rules... they can stack what they want on us, cast on the run, attack on the run, hell, prolly even shoot longbows on the run.

I've WATCHED for the drop of the enfeebles... if Bio and Dia are cast on the same target (same level of spells) Dia will NOT wear off, EVER, meaning it's wiped... Bio eventually does.

My S.O.P. = Dia II immediately. Once the target is close to death (and the party's hitting well enough) THEN Spam the F--- out of the Target with Bio for those dark magic skillups..
Mobs aren't Player-Characters
# Sep 18 2006 at 5:04 AM Rating: Decent
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1,543 posts
dieterderblau wrote:
To those people who hang their hat on "I've had Dia and Bio cast on me simultaneously by mobs" so they both must stack... I've experimented HEAVILY with these spells on Bahamut, and constantly get in arguements, especially in Valkurm and Qufim. Dia I will not override Bio I UNLESS it's caster's DIVINE skill is higher than the Bio caster's DARK skill - something I have YET to see... Mobs follow different rules... they can stack what they want on us, cast on the run, attack on the run, hell, prolly even shoot longbows on the run.


Hello, n00b! Dia is Enfeebling skill, not Divine. And Dia will always, inevitably be overwritten by Bio, regardless of differences in skill. Likewise, Dia II beats Bio, Bio II beats Dia II, Dia III beats Bio II, and Bio III overwrites them all. The higher tiers of Dia or Bio will overwrite the lower tiers of the same spell- Dia < Dia II < Dia III for example.

Quote:
I've WATCHED for the drop of the enfeebles... if Bio and Dia are cast on the same target (same level of spells) Dia will NOT wear off, EVER, meaning it's wiped... Bio eventually does.

My S.O.P. = Dia II immediately. Once the target is close to death (and the party's hitting well enough) THEN Spam the F--- out of the Target with Bio for those dark magic skillups..


Or go find a nice immobile worm and you can Aspir/Drain/Bio the things all day at range with virtually zero risk and maybe even get a few exp doing so. At higher levels, Besieged monsters work perfectly, no need to waste MP in a party skilling Dark up.
DoT 101
# Sep 24 2005 at 6:30 PM Rating: Decent
According to the Spring 2004 Strategy Guide, the Prime Element table on page 30, shows the "Rock, Paper, Scissors" effect of the elements in Final Fantasy.

I think this chart clears up the whole "Damage Over Time" (DoT) spell controversy.
Also my experience in watching the Battle Spam in parties seems to show the same flow of elements.

These Spells are as follows;
DIA (DEF down effect)
BIO (ATK down effect)
BURN (INT down effect)
FROST (AGI down effect)
CHOKE (VIT down effect)
RASP (DEX down effect)
SHOCK (MND down effect)
DROWN (STR down eefect)

Charts reads as follows;

Light Cancels Dark
Dark Cancels Light

Fire Cancels Ice
Ice Cancels Wind
Wind Cancels Earth
Earth Cancels Thunder
Thunder Cancels Water
Water Cancels Fire

so if we replace the Element in the chart with a DoT spell;

DIA Cancels BIO
BIO Cancels DIA

BURN Cancels FROST
FROST Cancels CHOKE
CHOKE Cancels RASP
RASP Cancels SHOCK
SHOCK Cancels DROWN
DROWN Cancels BURN

According to the chart the only 2 spells that can cancel each other are DIA (Light) & BIO (Dark) (although some believe Dia & Bio are based on which ever spell is the higher level stronger one cancels the other & there is validity to that claim)
All others follow the "Rock, Paper, Scissors" Rule (Frost Cannot cancel Burn, Choke Cannot cancel Frost, etc.)


So I hope this helps clear up some things. Please don't rebutt this post with more hearsay & unconfirmed theories. I got this all out of the game rules, if you think its wrong or not entirely correct, test it for yourself. All I know is that when a fellow BLM casts BURN, my FROST "Has no effect" which according to chart, follows the game's logic.

Happy Nuking.

Edited, Wed Sep 28 17:28:23 2005
RE: DoT 101
# Nov 28 2005 at 2:40 AM Rating: Decent
From what I have seen Bio cancels Dia. In all situations. Someone did a test and posted the results via screenshots, but I forget where the link is.

The test went like this: He determined the time it takes for the spells to wear off were just about equal. So he went up to a mob, casted bio, and then casted dia. A while later the chat logged the bio wore off, but dia didn't. He then casted dia, followed up by bio. A while later the chat logged the bio wore off, but did didn't.

To further prove bio overwrites dia, he found a "Too weak to be worthwhile..." yagudo that had low evasion (but not low defense). He casted dia, checked him, and it said he had low evasion and defense. He then casted bio, checked it, and he was back to low evasion.

Google around, and you will find it. Bio overwrites Dia always.
Dia/Bio Put to rest
# Feb 24 2005 at 9:32 PM Rating: Default
OMG people Dia cancels Bio and Bio cancels Dia look at your elemental chart all this make sense ...elements are meant to cancel each other to some form or another...if you wanna raise Dark Magic skill do Bio, Dia first then the spell that helps the party aka (DD very plentiful) use Choke for vit down or Shock for resistance to enfeb. down etc. The tru way to skill dark is the unmovable mobs aka worms and other mobs that stay still GL Red Mages n Blm I hope this helps

-------------------------------------
Rdm 41/ Blm 24/ Whm 11/ Thf 21/ War 14/ Mnk 13/ Drk 01/ Nin 13/ Drg 14/ Pal 17/ Sam 05..
Gaurda Server
RE: Dia/Bio Put to rest
# Feb 24 2005 at 10:08 PM Rating: Good
OMG what ignorance is in this post?..... yes in a way you are right EXCEPT you forget one minor fact in canceling out.... the LVL of the spell since dia is lower than bio when learned it is a "weaker" spell and since can be canceled by bio and when you get dia II that will over power bio untill bio II and so on. This also applies to slow/haste at lower lvls Haste can overpower slow when hit by lvl 45 and lower mob but after that in order to cast Haste(to have it stick) you have to erase slow then cast.... Sad thing is I'm not a mage at all and i know this... It's not my job to know this lol just a helpfull hint. GL being your mage

Edited, Thu Feb 24 22:37:17 2005
RE: Dia/Bio Put to rest
# Feb 25 2005 at 4:28 AM Rating: Decent
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6,424 posts
The biggest reason to skill up dark is to get the most out of Drain and Aspir. I never used a worm to skill up dark, instead I Bio II'd, Drain'ed and Aspir'ed every exp mob that those spells were usefull on. (you will fight a lot of crabs 50+, so Drain and Aspir become your friend)
DoT stacking
# Feb 24 2005 at 5:32 AM Rating: Decent
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6,424 posts
You can have one of each slot on a mob:
Slot1:
Dia(ga) < Bio < Dia II < Bio II
Slot2:
Poison(ga) < Poison(ga) II
Slot3:
Burn - Choke - Shock (INT - VIT - MND)
Frost - Rasp - Drown (AGI - DEX - STR)
Burn - Rasp (INT - DEX)
Frost - Shock (AGI - MND)
Choke - Drown (VIT - STR)
Slot4:
Foe Requiem < II < III < IV < V < VI



Edited, Thu Feb 24 05:37:23 2005
Stackable
# Feb 24 2005 at 4:35 AM Rating: Decent
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3,215 posts
Dia and Bio does not stack.
Dia or Bio stacks with Poison.
Dia or Bio and Poison stacks with Elemental Debuffs(Rasp, Frost etc)
Some Elemental Debuffs do not stack with eachother. I dont have all of them in my head since i dont use them so often. Might be AGI,DEX,VIT and STR,INT,MND that stacks.

All of these do Damage over Time(DoT)
you must be kidding me.
# Jan 18 2005 at 9:53 PM Rating: Decent
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129 posts
bio doesnt hurt? what?!?! are you high?
dia+bio+poison all lower hp constantly when on a pc. attack a Goblin Tinkerer in Konchat Highlands, they're more than happy to enfeeb you.
any of the dia/bio/poison it does hurts you.
pc's= all effects stack. (other than opposite elementals: ie- Burn+frost)
mobs= all opposing forces cancel.

*yet* another way to see if a spell does damage.. have it on you, and try to heal.. if you stand up right after without hitting a button, you're being damaged. (hope that helped)^^;
RE: you must be kidding me.
# Feb 23 2005 at 11:59 PM Rating: Default
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2,347 posts
Dia <-> bio cancel eachother.


Cast stoneskin to avoid that poison mumbo jumbo while healing ._.
it does dmg over time...
# Nov 14 2004 at 2:28 AM Rating: Decent
lol, it definitely does dmg over time... just use it on any mob that ur soloing and watch.. i may not be a high level blm, but i know for sure that bio is dmg over time... well not exactly for sure.. but im pretty sure... you get the idea.
I wish there was...
# Sep 25 2004 at 11:59 PM Rating: Decent
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271 posts
A lot more dark spells available to RDM.

It'd be more entertaining to skillup, then. =P

*bios and drains everything!*

Edited, Sun Sep 26 01:09:34 2004
Mp cost
# Sep 15 2004 at 9:13 PM Rating: Decent
In the latest update the Mp cost of bio was changed to 15 from 22. Its about time.
RE: Mp cost
# Sep 25 2004 at 6:41 PM Rating: Decent
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72 posts
i believe that the latest update also made bio stack with dia, may be rumor but i tried casting both on a mob in qufim (bio, then dia) then later i saw "Blah's Bio effect has worn off." anybody confirm from developers forum notes or something?

answered my own question...elemental opposites can't exist as debuffs on the same mob, similar to the shock, choke, rasp, etc. line, opposing elements will cancel eachother out

Edited, Sat Nov 27 09:04:40 2004
RE: Mp cost
# Oct 01 2005 at 7:07 AM Rating: Decent
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481 posts
No, dia and bio do not stack on a mob.

I've just tested this. See my post on the Bio II page for the details.
Bio Dia and Poison
# Jun 24 2004 at 4:02 PM Rating: Decent
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2,961 posts
You can have Poison and Dia on a mob at the same time, and I BELIEVE Poison and Bio, but never Dia and Bio, one cancels the other out, I don't think Bio takes precedence, thanks to PVP, someone tested all this and those are the results. And Magic doesn't affect PCs any differently than it affects MOBs.
RE: Bio Dia and Poison
# Aug 24 2004 at 12:07 PM Rating: Default
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158 posts
great, glad you posted the results and the testing methods of that PVP encounter where it was tested. Since you said so, i think i'll believe you....

comon, if you think you have a better way of testing Bio and Dia or any other DoTs for that matter, do what the other guy did in testing it. show your results and take many many screenshots.
Bio and Dia cancels each other out?
# Jun 14 2004 at 2:53 PM Rating: Good
So I heard this rumor about Dia cancelling out Bio or vice versa. I was like ??? because I'm a BLM/WHM and I usually cast Bio, then Dia. I don't want to be wasting my mp (or even worse, their effects) if they are cancelling each other. So I asked about 10 people in the area and in my linkshell. I heard differenct answers from everyone. To clear this up, I had to do some research on my own and I found this:

http://derekloffin.anifics.com/DiaBio/diabio.html

Not confirmed by Sony but I believe in the methods he used to test it. So CONCLUSION: Bio overwrites Dia. No matter if you casted Bio first or Dia first, Bio takes precedence. Dunno if it's a bug or not but that the way it is. So NO, they do not cancel each other out, it's just that Bio takes precendence.

Envyml
Caitsith
Lvl 30 BLM / Lvl 13 Whm
RE: Bio and Dia cancels each other out?
# Dec 16 2004 at 8:58 AM Rating: Decent
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170 posts
the information envyml posted is correct,

dia then bio = bio
bio then dia = bio
Lowers resistance to magic?
# Jun 09 2004 at 5:21 PM Rating: Decent
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158 posts
I heard from two or three people in my group that they've been told by high level redmages (level 60+) that Bio has the secondary function of lowering a mob's resistance to magic and enfeebling spells... Anyone heard of this? I don't think this is even much tested...
RE: Lowers resistance to magic?
# Feb 10 2005 at 10:21 AM Rating: Decent
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313 posts
Quote:
I heard from two or three people in my group that they've been told by high level redmages (level 60+) that Bio has the secondary function of lowering a mob's resistance to magic and enfeebling spells...

Actually, I don't think that this is true. I think it is Dia that lowers a mob's resistance to magic and enfeebling spells. Bio does, however, decrease attack.
//
# May 21 2004 at 11:19 PM Rating: Decent
ok, do shock stack with bio or dia then?
Hmmm
# Mar 26 2004 at 10:37 PM Rating: Decent
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89 posts
I was killing some Quadavs or Goblins today, and one cast both Poison and Dia on me, in that order. Dia overwrote the poison on me, and it was rather fresh so I don't think it just faded...
Bio doesnt' stack with Dia
# Jan 15 2004 at 2:03 PM Rating: Good
This DOES do damage over time. Not sure if it related to the initial damge or not...

By the way Bio DOES NOT stack with Dia (or poison for that matter)

Only one DOT can be on the mob at a time. Bio seems to always take precedence over Dia. I fyou want to see the proof, look here:
http://derekloffin.anifics.com/DiaBio/diabio.html
RE: Bio doesnt' stack with Dia
# Jan 27 2004 at 7:43 PM Rating: Decent
YOU ARE WRONG!
go train yourself in Palbrough Mines and wait until the Quadavs cast Dia and Poison and Bio on you, they all effect you all kill you over time
RE: Bio doesnt' stack with Dia
# Feb 23 2004 at 10:31 PM Rating: Decent
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79 posts
Sorry, but Dia and Bio and Poison only stack on players. Not mobs.
RE: Bio doesnt' stack with Dia
# Jan 20 2004 at 6:08 AM Rating: Default
Checked the page, a good work but it seems crazy to give you a bad spell for so much MP and not lowering attack as Dia does. It seems Bio is only a good DOT, i think we need to check the different damage done for both.
Only good to play solo at low lvl?
RE: Bio doesnt' stack with Dia
# Jan 20 2004 at 6:10 AM Rating: Default
I mean lowering defense
RE: Bio doesnt' stack with Dia
# Jan 20 2004 at 11:34 AM Rating: Default
Interesting...

That test is very well done, but it sounds like a bug to me. I mean, Dia does not stacks over Bio but DOES 1 point of damage? It becomes a nuke? What is this???

As for bio, i made some tests for the DOT side, and altough i cant see the numbers i did saw something wierd. The initial damage on low level creatures could sometimes be 13, and i could see the proporitonated chunk of health bar go down. Then the next time he lost HP it was a smaller chunk, then a somewhat bigger but smaller than the first. So, ether BIO is not exactly a normal DOT or in this game DOT spells dont do a presice amount of damage, instead every tick does a resistance check to see how much damage the fiend endures. That is all theory tough. I wish they added a way to see how much a DOT does over time. A message telling you the effect of X spell took no place or that X spell just vanished the effect of another would be great too.
RE: Bio doesnt' stack with Dia
# Aug 26 2004 at 8:06 PM Rating: Decent
Another posibility is the damage bar is broken into 'sections'. Say each is 3 hp for this particular mob... your initial cast does 12 damage(just for this example) damage, this takes away 4 sections. The first tick does, say 5 damage, this takes away 1 section but not a second(damage is still 5, but since its not enough for 2 sections, mob appears to have more health than it does), the next tick takes away 2 sections because one seciton was partially damaged. DOTs on players do a set ammount of damage, though it could be different for DOTs on enemies.
how much damage does it do?
# Jan 09 2004 at 3:25 PM Rating: Default
Anyone knows exactly what is the maximun damge this spell can do per tick? And how often does it hurt? Every second? Every 2 seconds?

I think the maximun i have seen this spell do is 10hp per second but then again i have not payed too much attention all the time.

Maybe i should go out and try it on level 1 fiends but that wont tell me if i already have the stats needed to do the max it can do.
Bio
# Nov 21 2003 at 9:26 AM Rating: Default
is this even worth getting since the magic cost??? and i am in bastok where can i get it or from only the acution house..
does DOT
# Nov 09 2003 at 6:43 PM Rating: Default
it definately does damage over time. To test it just cast it on a lvl 1 mob and stand there and watch it eventualy die.
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